ListBox doubleclick not working

plunkettphoto · **Joined:** Fri Oct 10, 2008 7:14 pm **Posts:** 94

Dim row,column as Integer
row=Me.RowFromXY(System.MouseX - Me.Left - Self.Left, System.MouseY - Me.Top - Self.Top)
column=Me.ColumnFromXY(System.MouseX - Me.Left - Self.Left, System.MouseY - Me.Top - Self.Top)
MsgBox "You double-clicked in cell "+Str(row)+", "+Str(column)

I copied this code directly out of the Library Reference for ListBox to determine which cell was double clicked.

I click the 3rd or 4th row of the ListBox and both row and column return -1

I have tried compiling both as Carbon and Cocoa - I'm running OS X of course Mountain Lion. Seems like I have made this work before so what am I doing wrong.

timhare · **Posted:** Thu Apr 25, 2013 11:10 pm

Depending on where this code is, "self" could be either the window (correct) or the listbox. This code will not work as part of a listbox subclass, it must be in the event code editor in the window. Also, it won't work as part of a containercontrol.

plunkettphoto · **Joined:** Fri Oct 10, 2008 7:14 pm **Posts:** 94

It's in the DoubleClick event of the Listbox control. No subclasses, the super is listed as Listbox. There are 3 columns in the list and the method to populate it works fine.

The code is right out of the Listbox control in the Language Reference and placed where it said to place it.

I really do appreciate the reply and all the help to be had here. But I still am not sure what's going on...

thanks
b

plunkettphoto · **Joined:** Fri Oct 10, 2008 7:14 pm **Posts:** 94

Ok, Tim's reply didn't help on the surface but it did get me looking at some other implications of what was said. Turns out the problem was in the PopulateListBox method I wrote which contained an error that apparently corrupted the listbox.

Anyway, thanks for getting me on the right train....

b

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ListBox doubleclick not working